Orioles executive VP of baseball operations Dan Duquette said today that his club is hoping to tie up an agreement with top free agent reliever Darren O’Day in short order, as Rich Dubroff of CSNmidatlantic.com tweets. “We’re continuing to work on that Darren O’Day project,” said Duquette. “We’re going to try to bring that to a head here in the next couple of days.”

Here’s more on an active market for relievers:

About a dozen teams have “checked in” on free agent righty Steve Cishek, Darren Wolfson of 1500 ESPN tweets. Non-tendered southpaw Cesar Ramos is also drawing wide interest he notes. But the Twins haven’t looked into either of those options. The club is set to meet with the representatives of Fernando Rodney and has some interest in lefty Tony Sipp as well.

39-year-old lefty Matt Thornton has drawn interest from six clubs, including the Twins, according to Mike Berardino of the St. Paul Pioneer Press (Twitterlinks). Thornton still brings a big fastball, and agent Adam Hubble says his client still hopes to pitch for another three or four seasons despite his advanced age.

As has previously been reported, and Twins GM Terry Ryan confirmed today, Minnesota has interest in a reunion with lefty Neal Cotts, Berardino tweets. “We still have interest,” said Ryan.

The Astros “have remained interested” in Yankees closer Andrew Miller, Joel Sherman of the New York Post reports on Twitter. It remains far from clear, of course, whether any team will be willing to offer enough to get New York to part with the outstanding lefty, though Houston certainly has the young starting pitching coveted by the Yanks.

As has seemed apparent all along, the Astros are continuing to cast a wide net after apparently missing on Aroldis Chapman. Per Jon Heyman of CBSSports.com (on Twitter), Houston is “looking” not only at Miller but also Mark Melancon of the Pirates. And Drew Storen of the Nationals might feature as a “fallback option,” he adds.

The Athletics took a shot at signing righty Mark Lowe before he landed in Detroit, Ken Rosenthal of FOX Sports tweets. Oakland has already done quite a bit of work in the bullpen, but it seems that the club could still be eyeing further additions.

The Tigers are now moving down the line to address the team’s need for a left-handed reliever, Anthony Fenech of the Detroit Free Press reports. After already making several pitching additions, Detroit could consider free agents such as Antonio Bastardo, Tony Sipp, and Craig Breslow, says Fenech, though it remains unclear whether the club has specific interest in any of those particular players.

While the Mets were involved in talks for Chapman over the summer, assistant GM John Ricco said today that the team hasn’t pursued him over the winter, as Tim Rohan of the New York Times reports on Twitter.

Former Royals minor league lefty Buddy Baumann appears to be quite a hot commodity among minor league free agents, per Jon Heyman of CBSSports.com (via Twitter). Despite never having thrown an MLB inning, Baumann has already drawn five big league offers this winter. The 27-year-old worked to a 3.04 ERA in 77 frames at Triple-A last year, spending most of his time in the pen, with 9.8 K/9 against 2.9 BB/9.